The main difference is, that the on-board camera software does not store the accuracy of the GPS fix (GPSDOP) and that it uses a slighly different format for the geographic coordinates with arcdeg/arcmin/arcsec.fraction instead of arcdeg/arcmin.fraction.

Storing the accuracy of a GPS fix, enables for filtering geographic positions based on their “trustworthiness”. Without the availablility of GPSDOP, users may be misled to assume centimeter-range accuracies, which in practice cannot be reached with a non-differential GPS device. Depending on the quality of the GPS module, horizontal accuracy ranges between 7 to 15 meters on average under good conditions and between 30 to 70 meters with lots of temporal and vertical noise under non-optimal conditions.